31 May
2021
31 May
'21
5:16 p.m.
On 2021-05-31 15:55, Paul Bryan wrote:
If you're proposing prevention of monkey patching Ellipsis, I think you'll have to go all-in on all builtins.
For example:
str = int
str
<class 'int'>
str == int
True
If you rebind str to int, the repr of str will say <class 'int'>, so you can tell that something's happened, but the repr of ... is always 'Ellipsis', even though you've rebound Ellipsis.
On Mon, 2021-05-31 at 11:37 -0300, André Roberge wrote:
In Python `...` is referred to as `Ellipsis` and cannot be assigned to. Yet, one can assign any value to the name `Ellipsis`.
Consider the following:
>>> ... Ellipsis >>> ... == Ellipsis True >>> Ellipsis Ellipsis >>> Ellipsis = 3 >>> Ellipsis 3 >>> ... = 4 File "<stdin>", line 1 ... = 4 ^ SyntaxError: cannot assign to Ellipsis >>> # But I just did assign a new value to the name Ellipsis above. >>> Ellipsis 3 >>> ... Ellipsis >>> ... == Ellipsis FalseFor consistency, `Ellipsis` (the name) should **always** refer to the same object that `...` refers to, so that both could not be assigned a new value.